Corrugated board line splicing paper supply device and corrugated board line

Abstract

The invention relates to a corrugated board line width-splicing paper supply device and a corrugated board line, and relates to the field of corrugated board production equipment.The corrugated board line width-splicing paper supply device comprises a paper supply frame, a paper receiving guide roller set, a paper position control mechanism and a paper supply roller set which are sequentially arranged, and the paper supply frame comprises a paper supply frame body, a support installation shaft, a first side paper clamping plate, a middle paper clamping plate and a second side paper clamping plate; the support installation shaft is fixed to the paper supply frame body, a first middle paper clamping head and a second middle paper clamping head are arranged at the opposite positions of the two sides of the middle paper clamping plate correspondingly, and the first middle paper clamping head and the second middle paper clamping head can independently rotate relative to the middle paper clamping plate. The paper position control mechanism can control the positions of the two pieces of narrow-width paper on the paper supply roller set in real time, so that the two pieces of narrow-width paper are seamlessly spliced into wide-width spliced paper, narrow-width paper rolls are effectively utilized on the basis of ensuring the quality, and the production cost of corrugated boards is reduced.

Description

Technical Field

[0001] The present application relates to the field of corrugated board production equipment, and more particularly to a corrugated board line splicing and paper feeding device. In addition, the present application also relates to a corrugated board line. Background Art

[0002] Corrugated paperboard is a board-shaped material made by gluing face paper and corrugated paper formed by corrugating rollers. It is generally divided into single corrugated paperboard and double corrugated paperboard. It has the advantages of low cost, light weight, easy processing, high strength, excellent printing adaptability, convenient storage and transportation, etc. It can be used as the outer packaging of food, home appliances, digital products and other items or express packaging. Moreover, more than 80% of corrugated paper can be recycled and regenerated, which is relatively environmentally friendly. With the development of e-commerce, corrugated paper has been more and more widely used.

[0003] Corrugated cardboard is mostly produced through corrugated cardboard lines. The corrugated cardboard line guides the face paper of a certain width to the preheating cylinder for preheating and gluing through multiple paper feeding devices, guides the corrugated paper of the same width to the corrugating roller for processing to form corrugated paper, and then bonds the face paper and corrugated paper to form corrugated cardboard. It is also possible to bond multi-layer face paper and multi-layer corrugated paper to form a multi-layer corrugated cardboard with a multi-layer structure, further improving the compressive strength and cushioning performance of the corrugated cardboard.

[0004] The width of corrugated cardboard produced by existing corrugated cardboard lines is mostly between 2.5-3.3 meters, and the width of the facial paper rolls and corrugated paper rolls required for production is also between 2.5-3.3 meters, while the width of paper produced by paper mill roll production equipment is mostly 4.5 meters. After the paper mill produces paper rolls of 2.5-3.3 meters in width according to the requirements of the corrugated cardboard mill, a large number of narrow width paper rolls of 1.2-2 meters are accumulated. Such narrow width paper rolls are usually not effectively used because there is no market demand, and are usually sold by paper mills at very low prices. Summary of the invention

[0005] In order to utilize the narrow width paper rolls stored in paper mills and reduce the production cost of corrugated cardboard, the present application provides a corrugated cardboard line splicing paper feeding device and a corrugated cardboard line.

[0006] The corrugated board line splicing and feeding device provided in this application adopts the following technical solution: A corrugated cardboard line splicing paper feeding device comprises a paper feeding frame, a paper receiving guide roller group, a paper position control mechanism and a paper feeding roller group, wherein the paper feeding frame comprises a paper feeding frame body, a bracket mounting shaft, a first side clamping paper board, a middle clamping paper board and a second side clamping paper board, wherein the bracket mounting shaft is fixed to the paper feeding frame body, and the first side clamping paper board, the middle clamping paper board and the second side clamping paper board are sequentially mounted on the bracket mounting shaft, and the first side paper clamping head, the first middle paper clamping head, the second middle paper clamping head and the second side paper clamping head are rotatably connected to the relative positions of the inner side of the first side clamping paper board, the two sides of the middle clamping paper board and the inner side of the second side clamping paper board, respectively, and the first side paper clamping head and the first middle paper clamping head are rotatably connected to the relative positions of the inner side of the first side paper clamping head and the second middle paper clamping head. A narrow width paper roll can be clamped between the first intermediate paper clamp and between the second intermediate paper clamp and the second side paper clamp. The first intermediate paper clamp and the second intermediate paper clamp can rotate independently relative to the intermediate clamping paper board. The paper receiving guide roller group is arranged between the paper supply frame and the paper position control mechanism so as to guide a narrow width paper to the paper position control mechanism respectively and transport it to the paper supply roller group through the paper position control mechanism. The paper position control mechanism can control the position of two narrow width papers on the paper supply roller group in real time so that the two narrow width papers are seamlessly spliced ​​on the paper supply roller group to form wide width spliced ​​paper.

[0007] By adopting the above technical scheme, the first middle paper clamp and the second middle paper clamp, which are independently rotated on both sides of the middle clamping paperboard, can cooperate with the first side paper clamp and the second side paper clamp respectively, and clamp two narrow width paper rolls that are independently rotated in parallel at a close distance on the paper supply rack, which is conducive to the splicing of two narrow width paper strips. The paper position control mechanism set between the paper receiving guide roller group and the paper supply roller group can control the position of the two narrow width paper strips transmitted by the paper receiving guide roller group, so that the two narrow width paper strips are seamlessly spliced ​​on the paper supply roller group to form a wide width splicing paper whose total width meets the width requirements of the corrugated paperboard, so that the narrow width paper rolls of 1.2-2 meters accumulated in the width paper mill can be used to produce corrugated paperboard with a width of 2.5-3.3 meters, so as to achieve the rational use of narrow width paper rolls and reduce the production cost of corrugated paperboard.

[0008] In a specific feasible implementation scheme, a paper chuck mounting hole is provided on the middle paperboard, a first bearing mounting portion is provided on the outer side surface of the end portion of the first middle paper chuck, a first bearing is installed between the first bearing mounting portion and the paper chuck mounting hole, a bearing limit pin hole is provided at the end portion of the first bearing mounting portion outside the first bearing, a bearing limit pin is provided in the bearing limit pin hole; a bearing mounting hole is provided on the end face of the first middle paper chuck, a connecting shaft is provided on the end face of the opposite end of the second middle paper chuck, a second bearing is provided between the connecting shaft and the bearing mounting hole, a bearing limit retaining spring groove is provided on the connecting shaft outside the second bearing, a bearing limit retaining spring is provided in the bearing limit retaining spring groove.

[0009] By adopting the above technical solution, the first intermediate paper clamp can rotate freely on the intermediate paperboard by using the first bearing arranged between the first bearing mounting part and the paper clamp mounting hole; the second intermediate paper clamp can rotate freely on the first intermediate paper clamp by using the second bearing arranged between the connecting shaft and the bearing mounting hole, so that the first intermediate paper clamp and the second intermediate paper clamp can rotate independently relative to the intermediate paperboard, thereby ensuring that the narrow width paper roll clamped between the first side paper clamp and the first intermediate paper clamp and the narrow width paper roll clamped between the second intermediate paper clamp and the second side paper clamp can rotate independently, which is convenient for extracting paper strips of the same length from narrow width paper rolls of different diameters and splicing them into wide width splicing paper. By using the bearing stop pin arranged in the end bearing stop pin hole of the first bearing mounting part and the bearing stop snap ring arranged in the bearing stop snap ring groove on the connecting shaft outside the second bearing, the installation position of the first bearing on the first bearing mounting part and the installation position of the second bearing on the connecting shaft can be limited, thereby improving the position stability of the first intermediate paper clamp and the second intermediate paper clamp on the intermediate paperboard.

[0010] In a specific feasible implementation scheme, a connecting threaded hole is provided at the end of the bearing mounting hole, and a connecting sleeve, a thrust bearing and a thrust bearing limiting sleeve are sequentially provided in the connecting threaded hole, and the thrust bearing limiting sleeve is screwed into the connecting threaded hole through the thread on the outer peripheral surface, so that the thrust bearing and the connecting sleeve are confined on the inner side of the thrust bearing limiting sleeve, and a connecting thread is provided on the connecting shaft at the outer end of the bearing limiting retaining ring groove, and the connecting sleeve is connected to the end of the connecting shaft through an adapting thread, and a sleeve limiting hole is provided on the connecting sleeve, and a sleeve limiting socket is provided at a corresponding position on the first intermediate paper chuck.

[0011] By adopting the above technical solution, the connection between the second intermediate paper chuck and the first intermediate paper chuck can be formed by the threaded connection between the connecting shaft and the connecting sleeve inside the connecting threaded hole, effectively improving the bearing capacity of the first intermediate paper chuck and the second intermediate paper chuck. By inserting the sleeve limiting plug hole at the corresponding position of the first intermediate paper chuck, the pin can be inserted into the sleeve limiting hole on the connecting sleeve to limit the position of the connecting sleeve inside the connecting threaded hole, so that the connecting shaft can be screwed and fixed on the connecting sleeve to connect and disassemble the second intermediate paper chuck and the first intermediate paper chuck.

[0012] In a specific feasible implementation scheme, the middle paper clip 14 is installed in the middle part of the bracket mounting shaft, axial slide bars are provided on both sides of the bracket mounting shaft, axial slide grooves are provided on the first side paper clip and the second side paper clip, and are slidably installed on the bracket mounting shaft through the cooperation of the axial slide grooves and the axial slide bars, and sliding thrusters are provided between the first side paper clip, the second side paper clip and the paper supply rack.

[0013] By adopting the above technical solution, the first side clamping paper and the second side clamping paper are slidably connected on the bracket mounting shaft through the cooperation of the axial slide groove and the axial slide bar, and the distance between the side paper clamp and the middle paper clamp can be controlled by sliding the first side clamping paper and the second side clamping paper on the bracket mounting shaft, so that the narrow width paper roll can be conveniently installed between the side paper clamp and the middle paper clamp. The sliding pusher arranged between the first side clamping paper and the second side clamping paper and the paper supply frame can conveniently push the first side clamping paper and the second side clamping paper to move on the bracket mounting shaft, so as to conveniently complete the clamping of the narrow width paper roll on the paper supply frame.

[0014] In a specific implementation manner, the first side clamping paperboard and the second side clamping paperboard are both provided with paper roll buffers, and the paper roll buffers are respectively connected to the first side paper clamping head and the second side paper clamping head.

[0015] By adopting the above technical solution, using the paper roll buffer connected to the first side paper clamp and the second side paper clamp respectively, the rotation tightness of the first side paper clamp and the second side paper clamp can be limited to prevent excessive release of the paper tape on the narrow width paper roll.

[0016] In a specific feasible implementation scheme, the paper position control mechanism includes a control mechanism mounting frame, a first paper position control frame and a second paper position control frame, the first paper position control frame and the second paper position control frame are both rotatably mounted on the control mechanism mounting frame, the first paper position control frame and the second paper position control frame are provided with paper feed guide rollers on their upper portions and paper discharge guide rollers on their lower portions, and a light curtain is provided on the control mechanism mounting frame at a position opposite to the paper discharge guide rollers.

[0017] By adopting the above technical solution, the positions of the narrow width paper tapes transmitted from the first paper position control frame and the second paper position control frame can be controlled respectively by rotating the first paper position control frame and the second paper position control frame installed on the control mechanism mounting frame, so that the two narrow width paper tapes can be seamlessly spliced ​​on the paper supply roller group, and the overlapping width of the spliced ​​two narrow width paper tapes and the overall width of the spliced ​​wide width spliced ​​paper can be controlled. The position of the paper tape output through the paper output guide roller can be detected in real time by using the light curtain fixed on the control mechanism mounting frame at a position relative to the paper output guide roller, and the rotation angle of the first paper position control frame and the second paper position control frame on the control mechanism mounting frame can be controlled in real time according to the detected paper tape position, so as to ensure that the narrow width paper tapes transmitted from the first paper position control frame and the second paper position control frame are spliced ​​according to the set requirements.

[0018] In a specific feasible implementation scheme, the control mechanism mounting frame includes a fixed base frame, a first fixed frame and a second fixed frame, the first fixed frame and the second fixed frame are relatively fixed on the fixed base frame, the first paper position control frame is rotatably mounted on the first fixed frame, the second paper position control frame is rotatably mounted on the second fixed frame, and the light curtains are respectively arranged on the first fixed frame and the second fixed frame.

[0019] By adopting the above technical solution, the first paper position control frame and the second paper position control frame are rotatably installed on the first fixed frame and the second fixed frame respectively, so as to better ensure the independence of the rotation of the first paper position control frame and the second paper position control frame, and prevent the mutual influence between the rotation of the first paper position control frame and the second paper position control frame.

[0020] In a specific feasible implementation scheme, arc-shaped guide rails are provided on both the first fixed frame and the second fixed frame, and guide rail matching structures are provided at corresponding positions of the first paper position control frame and the second paper position control frame. The first paper position control frame and the second paper position control frame are respectively rotatably mounted on the first fixed frame and the second fixed frame through the matching of the guide rail matching structure with the arc-shaped guide rails, and can rotate under the drive of a rotation driver.

[0021] By adopting the above technical solution and utilizing the arrangement in which the guide rail matching structure cooperates with the arc guide rail, the position accuracy of the first paper position control frame and the second paper position control frame rotating on the first fixed frame and the second fixed frame can be improved, thereby being able to more accurately control the position of the paper tape transmitted from the first paper position control frame and the second paper position control frame, thereby ensuring the splicing effect between the two narrow width paper tapes.

[0022] In a specific feasible implementation scheme, the first paper position control frame, the first fixed frame, the second paper position control frame and the second fixed frame are arranged in sequence, the first fixed frame is provided with a linkage gear, the relative positions of the first paper position control frame and the second paper position control frame are provided with linkage racks meshing with the linkage gear, and the rotation drive is arranged between the first paper position control frame and the first fixed frame, or between the second paper position control frame and the second fixed frame.

[0023] By adopting the above technical solution, by utilizing the meshing between the linkage gear arranged on the first fixed frame and the linkage racks on the first paper position control frame and the second paper position control frame on both sides of the first fixed frame, a reverse linkage of the rotational movement of the first paper position control frame and the second paper position control frame can be formed, thereby controlling the reverse synchronous movement of the paper tape position transmitted from the first paper position control frame and the second paper position control frame, thereby improving the control efficiency of the paper tape position and the splicing effect between the two narrow width paper tapes.

[0024] The corrugated board line provided in this application adopts the following technical solutions: A corrugated board line comprises a plurality of paper supply devices, wherein the paper supply devices comprise at least one corrugated board line splicing paper supply device of the present application and at least one existing paper supply device.

[0025] The corrugated cardboard line splicing paper feeding device of the present application can input wide-width splicing paper formed by seamlessly splicing two narrow-width paper tapes, which are bonded to each other with the wide-width paper tapes input by the existing paper feeding device, and the wide-width paper tapes are used to limit the position of the splicing paper in the corrugated cardboard. While utilizing the narrow-width paper rolls, the structural strength of the corrugated cardboard is guaranteed, so that the quality of the corrugated cardboard processed by the wide-width splicing paper formed by splicing narrow-width paper rolls reaches the same quality level as the corrugated cardboard produced by using wide-width paper rolls, and at the same time greatly reduces the procurement cost of paper rolls and the production cost of corrugated cardboard.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By using the first side clamping paper board, the middle clamping paper board and the second side clamping paper board arranged on the same bracket mounting shaft, two narrow width paper rolls can be clamped at relative positions on both sides of the middle clamping paper board, so that the paper tapes derived from the two narrow width paper rolls can be relatively transmitted at a close distance on the paper receiving guide roller group, which is beneficial to the splicing of the two narrow width paper tapes and the control of the relative positions between the paper tapes, improves the convenience of splicing the two paper tapes with each other, and realizes the effective use of the narrow width paper rolls.

[0027] 2. By utilizing the independent rotation of the first middle paper clamping head and the second middle paper clamping head arranged on both sides of the middle paper clamping board and the middle paper clamping board, the narrow width paper roll clamped between the first side paper clamping head and the first middle paper clamping head can rotate at a different speed from the narrow width paper roll clamped between the second middle paper clamping head 142 and the second side paper clamping head, thereby being able to output narrow width paper tapes of the same length from narrow width paper rolls of different diameters at the same paper feeding speed, which is conducive to the synchronous overall splicing of the two narrow width paper tapes.

[0028] 3. Through the rotational connection between the second intermediate paper clamp and the first intermediate paper clamp, and the setting that the end of the connecting shaft at the end of the second intermediate paper clamp is rotationally connected to the internal connecting threaded hole of the first intermediate paper clamp, an axial connection between the second intermediate paper clamp and the first intermediate paper clamp can be formed, thereby improving the reliability of the connection structure of the first intermediate paper clamp and the second intermediate paper clamp on the intermediate paperboard, as well as the load-bearing capacity of the first intermediate paper clamp and the second intermediate paper clamp, and ensuring the reliable clamping and stable rotation of the two narrow width paper rolls on both sides of the intermediate paperboard.

[0029] 4. By utilizing the first fixed frame and the second fixed frame which are relatively arranged in the control mechanism mounting frame, and the first paper position control frame and the second paper position control frame which are rotatably mounted on the first fixed frame and the second fixed frame respectively, a linkage gear can be arranged on the first fixed frame to mesh with the linkage racks on the first paper position control frame and the second paper position control frame, thereby forming a reverse linkage of the rotational motion of the first paper position control frame and the second paper position control frame, thereby being able to control the reverse synchronous movement of the position of the paper tape transmitted from the first paper position control frame and the second paper position control frame, thereby improving the control efficiency of the paper tape position and the splicing effect between the two narrow width paper tapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of an embodiment of a corrugated board line splicing and feeding device of the present application.

[0031] Figure 2 This is a schematic diagram from another perspective of an embodiment of the corrugated board line splicing and feeding device of the present application.

[0032] Figure 3 This is a schematic diagram of a paper supply rack in one embodiment of a corrugated board line splicing and supplying device of the present application.

[0033] Figure 4 It is a schematic axial cross-sectional view of the middle paper clamping head portion in one embodiment of the corrugated board line splicing and paper feeding device of the present application.

[0034] Figure 5 It is a transverse cross-sectional view of the middle paper clamping head portion in one embodiment of the corrugated board line splicing and feeding device of the present application.

[0035] Figure 6 This is a schematic diagram of a paper position control mechanism in one embodiment of a corrugated board line splicing and feeding device of the present application.

[0036] Figure 7 This is a schematic diagram from another perspective of the paper position control mechanism in one embodiment of the corrugated board line splicing and feeding device of the present application.

[0037] Figure 8 This is an exploded view of the parts of the paper position control mechanism in one embodiment of the corrugated board line splicing and feeding device of the present application.

[0038] Fig. 9 This is an exploded view of the parts from another perspective of the paper position control mechanism in one embodiment of the corrugated board line splicing and feeding device of the present application.

[0039] Description of reference numerals: 1, paper supply rack; 11, paper supply rack body; 12, bracket mounting shaft; 121, axial slide bar; 13, first side clamping paperboard; 131, first side paper chuck; 132, axial slide groove; 133, paper roll buffer; 14, middle clamping paperboard; 141, first middle paper chuck; 1411, first bearing mounting portion; 1412, bearing stop pin hole; 1413, bearing mounting hole; 1414, connecting threaded hole; 1415, thrust bearing stop sleeve; 1416, sleeve stop plug hole; 1417, bearing stop pin; 142, second middle paper chuck; 1421, connecting shaft; 1422, bearing stop retaining ring groove; 1423, connecting sleeve; 1424, sleeve stop hole; 143, paper chuck mounting hole; 1 44. First bearing; 145. Second bearing; 146. Thrust bearing; 15. Second side paper clamping board; 151. Second side paper clamping head; 16. Sliding thruster; 2. Paper receiving guide roller group; 3. Paper position control mechanism; 31. Control mechanism mounting frame; 311. Fixed base frame; 312. First fixed frame; 313. Second fixed frame; 314. Arc guide rail; 315. Interlocking gear; 32. First paper position control frame; 321. Paper feed guide roller; 322. Paper discharge guide roller; 323. Guide rail matching structure; 324. Rotating driver; 325. Interlocking rack; 33. Second paper position control frame; 34. Light curtain; 4. Paper supply roller group; 5. Preheating cylinder; 6. Narrow width paper roll; 61. Narrow width paper tape; 62. Wide width splicing paper. DETAILED DESCRIPTION

[0040] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0041] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0043] An embodiment of the corrugated board line splicing and feeding device of the present application is as follows: Figures 1 to 4 As shown, the paper supply rack 1 includes a paper receiving guide roller group 2, a paper position control mechanism 3 and a paper supply roller group 4. The paper supply rack 1 is used to install and support the raw paper roll for producing corrugated cardboard. The paper roll is slowly rotated on the paper supply rack to release the paper tape in the paper roll to meet the production needs of the corrugated cardboard. The paper supply rack 1 includes a paper supply rack body 11, a bracket mounting shaft 12, a first side clamping paper board 13, a middle clamping paper board 14 and a second side clamping paper board 15. The paper supply rack body 11 is set on the ground and is used to install and position other structures on the paper supply rack 1. The bracket mounting shaft 12 is fixedly installed on the paper supply rack body 11, and is usually set horizontally on the paper supply rack body 11. The first side clamping paperboard 13, the middle clamping paperboard 14, and the second side clamping paperboard 15 are sequentially mounted on the bracket mounting shaft 12. The first side paper clamping head 131, the first middle paper clamping head 141, the second middle paper clamping head 142, and the second side paper clamping head 151 are respectively arranged at the relative positions on the inner side of the end of the first side clamping paperboard 13, the both sides of the end of the middle clamping paperboard 14, and the inner side of the end of the second side clamping paperboard 15. The first side paper clamping head 131 is rotatably connected to the first side clamping paperboard 13, the first middle paper clamping head 141 and the second middle paper clamping head 142 are both rotatably connected to the middle clamping paperboard 14, and the second side paper clamping head 151 is rotatably connected to the second side clamping paperboard 15. The first side paper clamping head 131 is arranged opposite to the first middle paper clamping head 141, and is used to clamp and fix one narrow width paper roll 6; the second middle paper clamping head 142 is arranged opposite to the second side paper clamping head 151, and is used to clamp and fix another narrow width paper roll 6.

[0044] The first intermediate paper clamp 141 and the second intermediate paper clamp 142 are relatively coaxially arranged on both sides of the intermediate paperboard 14, and can rotate independently relative to the intermediate paperboard 14, so that the narrow width paper roll 6 clamped on the first intermediate paper clamp 141 and the second intermediate paper clamp 142 on both sides of the intermediate paperboard 14 can rotate independently without interfering with each other, so that regardless of the diameter of the narrow width paper roll 6, narrow width paper tapes 61 of the same length can be extracted from the two narrow width paper rolls 6 to ensure smooth splicing between the two.

[0045] The paper guide roller group 2 is arranged between the paper supply rack 1 and the paper position control mechanism 3, and is used to guide the paper tapes extracted from the two narrow paper rolls 6 on the paper supply rack 1 to the paper position control mechanism 3. Usually, the paper guide roller group 2 includes two sets of independent paper guide rollers, and each set of paper guide rollers is used to guide the narrow width paper tape 61 extracted from a narrow width paper roll 6.

[0046] The paper position control mechanism 3 can use various mechanisms that can control the lateral position of the narrow width paper tape 61 when it is transmitted on the conveying roller. The narrow width paper tape 61 after passing through the paper position control mechanism 3 is transported to the paper supply roller group 4, and then transported to the next processing step through the paper supply roller group 4, such as being transported to the preheating cylinder 5, and then being preheated on the preheating cylinder 5 and glued. The paper position control mechanism 3 can control the position of the two narrow width paper tapes 61 on the paper supply roller group 4 in real time, so that the two narrow width paper tapes 61 are in a seamless splicing state on the paper supply roller group 4, and the two narrow width paper tapes 61 are combined to form a wide width splicing paper 62. In the wide width splicing paper 62, the adjacent edges of the two narrow width paper tapes 61 can be exactly abutted, or there can be a millimeter-level overlap, but it must be ensured that there is no gap between the two.

[0047] In some embodiments of the corrugated paperboard line splicing paper feeding device of the present application, a paper clamp head mounting hole 143 is provided on the middle paperboard 14, and a retaining edge for limiting the bearing position can also be provided on one side of the paper clamp head mounting hole 143. One end of the first middle paper clamp head 141 is installed on the middle paperboard 14, and the other end extends toward the first side paper clamp head 131. A first bearing mounting portion 1411 is provided on the outer side surface of the end of the first middle paper clamp head 141, and a first bearing 144 is installed on the first bearing mounting portion 1411. In addition, the outer ring of the first bearing 144 is installed in the paper clamp head mounting hole 143, and has an interference fit with the hole wall of the paper clamp head mounting hole 143, so that the first middle paper clamp head 141 can rotate freely on the middle paperboard 14.

[0048] A bearing limit pin hole 1412 is provided at the end of the first bearing mounting portion 1411 outside the first bearing 144. After the first bearing 144 is installed on the first bearing mounting portion 1411, a bearing limit pin 1417 is inserted into the bearing limit pin hole 1412. The bearing limit pin 1417 is used to limit the inner ring of the first bearing 144, so that the first bearing 144 is restricted and fixed on the first bearing mounting portion 1411.

[0049] One end of the second intermediate paper chuck 142 is mounted on the intermediate paperboard 14, and the other end extends toward the second side paper chuck 151. An axially extending connecting shaft 1421 is provided in the middle of the end surface of the mounting end of the second intermediate paper chuck 142. The second bearing 145 is sleeved and mounted on the connecting shaft 1421. A bearing limiting retaining spring groove 1422 is provided on the connecting shaft 1421 outside the second bearing 145. A bearing limiting retaining spring is installed in the bearing limiting retaining spring groove 1422. The second bearing 145 is limited and fixed on the connecting shaft 1421 by the bearing limiting retaining spring. A bearing mounting hole 1413 is provided inside the first bearing mounting portion 1411 on the end surface of the first intermediate paper chuck 141. The second bearing 145 is installed in the bearing mounting hole 1413 by interference fit between its outer ring and the hole wall of the bearing mounting hole 1412, so that the second intermediate paper chuck 142 can rotate freely on the first intermediate paper chuck 141, that is, it can rotate freely relative to the intermediate paperboard 14. In this way, the first intermediate paper clamp head 141 and the second intermediate paper clamp head 142 can both rotate freely relative to the intermediate paperboard 14, and can also rotate freely between the first intermediate paper clamp head 141 and the second intermediate paper clamp head 142. Therefore, the first intermediate paper clamp head 141 and the second intermediate paper clamp head 142 can rotate independently relative to the intermediate paperboard 14.

[0050] The bearing limit pin 1417 inserted in the bearing limit pin hole 1412 can also be limited to the outer side of the outer ring of the second bearing 145 in the bearing mounting hole 1413, and is used to limit the second bearing 145 in the bearing mounting hole 1413 to ensure the stability of the installation position between the second intermediate paper clamp 142 and the first intermediate paper clamp 141.

[0051] In a preferred embodiment of the corrugated board line splicing paper feeding device of the present application, a connecting threaded hole 1414 is provided in the middle of the bottom wall of the bearing mounting hole 1413, an internal thread is provided on the side wall of the connecting threaded hole 1414, and a connecting sleeve 1423, a thrust bearing 146 and a thrust bearing limiting sleeve 1415 are provided in sequence from the inside to the outside in the connecting threaded hole 1414. An external thread matching the internal thread on the connecting threaded hole 1414 is provided on the outer peripheral surface of the thrust bearing limiting sleeve 1415, and the thrust bearing limiting sleeve 1415 is screwed into the connecting threaded hole 1414, and the thrust bearing 146 and the connecting sleeve 1423 are limited in the connecting threaded hole 1414 on the inner side of the thrust bearing limiting sleeve 1415.

[0052] A connecting thread is arranged on the connecting shaft 1421 at the outer end of the bearing limit retaining ring groove 1422, and mutually matching threads are arranged on the sleeve hole wall of the connecting sleeve 1423. The connecting sleeve 1423 is screwed and connected to the end of the connecting shaft 1421, so that the connecting sleeve 1423 and the thrust bearing limit sleeve 1415 are respectively abutted against the two sides of the thrust bearing 146, thereby forming a reliable connection between the second intermediate paper chuck 142 and the first intermediate paper chuck 141, and ensuring that the two can rotate smoothly and freely.

[0053] A sleeve limiting hole 1424 is provided on the side wall of the connecting sleeve 1423, and a sleeve limiting insertion hole 1416 is provided at a corresponding position on the outer wall of the first intermediate paper clamp 141. A limiting pin can be inserted through the sleeve limiting insertion hole 1416, and the end of the limiting pin is inserted into the sleeve limiting hole 1424 to limit the rotation of the connecting sleeve 1423, thereby facilitating the screwing connection between the connecting shaft 1421 and the connecting sleeve 1423 and ensuring the connection length between the second intermediate paper clamp 142 and the first intermediate paper clamp 141.

[0054] In some embodiments of the corrugated cardboard line splicing paper feeding device of the present application, the middle cardboard 14 is fixedly installed in the middle of the bracket mounting shaft 12 by screws. Of course, different screw fixing holes can also be set at different positions in the middle of the bracket mounting shaft 12, so that the middle cardboard 14 can be fixedly installed at different positions in the middle of the bracket mounting shaft 12, so that two narrow width paper rolls 6 with a large difference in width can be clamped on both sides of the middle cardboard 14.

[0055] Axial slide bars 121 are respectively arranged on both sides of the bracket mounting shaft 12, and mutually adaptable axial slide grooves 132 are arranged at corresponding positions on the first side clamping paper board 13 and the second side clamping paper board 15. The first side clamping paper board 13 and the second side clamping paper board 15 are respectively installed on the bracket mounting shaft 12 through the cooperation between their respective axial slide grooves 132 and the corresponding axial slide bars 121, and can slide on the bracket mounting shaft 12, so that narrow width paper rolls 6 of different widths can be clamped between the first side clamping paper board 13, the second side clamping paper board 15 and the middle clamping paper board 14, and the narrow width paper rolls 6 can be clamped. A sliding pusher is provided between the first side clamping paper 13 and the paper supply frame 11, and between the second side clamping paper 15 and the paper supply frame 11. The sliding pusher can use a hydraulic cylinder, an air cylinder or an electric push rod with a self-locking function. The sliding pusher can push the first side clamping paper 13 and the second side clamping paper 15 to move on the bracket mounting shaft 12 respectively, and can lock the first side clamping paper 13 and the second side clamping paper 15 at the set position on the bracket mounting shaft 12, so as to ensure that the first side clamping paper 13 and the second side clamping paper 15 can stably clamp the narrow width paper roll 6.

[0056] In some embodiments of the corrugated board line splicing paper feeding device of the present application, a paper roll buffer 133 is provided on both the first side clamping board 13 and the second side clamping board 15. The paper roll buffer 133 can use an existing commercialized rotary buffer, and the paper roll buffer 133 is connected to the first side paper clamp 131 and the second side paper clamp 151 respectively, and is used to limit the rapid rotation of the first side paper clamp 131 and the second side paper clamp 151, to prevent the narrow width paper roll 6 clamped on the first side paper clamp 131 or the second side paper clamp 151 from rotating rapidly under external traction, and to prevent the paper tape in the paper roll from being released too quickly, resulting in inconsistent tension of the two narrow width paper tapes 61.

[0057] In some embodiments of the corrugated paperboard line splicing paper feeding device of the present application, the paper position control mechanism 3 includes a control mechanism mounting frame 31, a first paper position control frame 32 and a second paper position control frame 33. The control mechanism mounting frame 31 is used to install and position other structures in the paper position control mechanism 3, and the first paper position control frame 32 and the second paper position control frame 33 are rotatably mounted on the control mechanism mounting frame 31, and both can rotate on the control mechanism mounting frame 31. The first paper position control frame 32 and the second paper position control frame 33 are both provided with a paper feed guide roller 321 on the upper part and a paper discharge guide roller 322 on the lower part. The two narrow width paper tapes 61 transmitted through the paper receiving guide roller group 2 are respectively transmitted from the upper paper feed guide roller 321 of the first paper position control frame 32 to the paper supply roller group 4 by bypassing the lower paper discharge guide roller 322, and from the upper paper feed guide roller 321 of the second paper position control frame 33 to the paper supply roller group 4 by bypassing the lower paper discharge guide roller 322, and are transmitted forward at different positions on the same paper supply roller in the paper supply roller group 4. By respectively controlling the rotation angle of the first paper position control frame 32 and the second paper position control frame 33 on the control mechanism mounting frame 31, the positions of the narrow width paper tapes 61 transmitted through the first paper position control frame 32 and the second paper position control frame 33 on the paper supply roller in the paper supply roller group 4 can be respectively controlled, so that the two narrow width paper tapes 61 are seamlessly spliced ​​on the paper supply roller, that is, the edges abut against each other, or overlap slightly, to form a wide width spliced ​​paper 62.

[0058] A light curtain 34 is provided on the control mechanism mounting frame 31 at a position opposite to the paper discharge guide roller 322. The narrow width paper tape 61 transmitted from the paper discharge guide roller 322 passes through the light curtain 34 and is transmitted to the paper supply roller group 4. The light curtain 34 is a light curtain sensor. A plurality of infrared transmitting tubes are installed at equal intervals on one side of the light curtain 34, and the same number of infrared receiving tubes are arranged in the same manner on the other side. Each infrared transmitting tube corresponds to a corresponding infrared receiving tube, and they are installed on the same straight line. When the narrow width paper tape 61 passes through different positions in the light curtain 34, it can block the infrared rays emitted by different infrared transmitting tubes. By checking the infrared signals received by different infrared receiving tubes, the real-time transmission position of the narrow width paper tape 61 can be detected. By controlling the rotation angle of the first paper position control frame 32 and the second paper position control frame 33 on the control mechanism mounting frame 31 according to the real-time transmission position of the narrow width paper tape 61, the positions of the two narrow width paper tapes 61 on the paper supply roller group 4 can be controlled in real time to ensure that the two narrow width paper tapes 61 are in a seamless splicing state on the paper supply roller group 4.

[0059] In a preferred embodiment of the corrugated board line splicing and feeding device of the present application, the control mechanism mounting frame 31 includes a fixed base frame 311, a first fixed frame 312 and a second fixed frame 313. The fixed base frame 311 is a mounting frame fixed to the ground or a mounting foundation, and the first fixed frame 312 and the second fixed frame 313 are respectively fixed to the fixed base frame 311, usually fixed to the fixed base frame 311 at intervals, and arranged relatively in the paper tape conveying direction.

[0060] The first paper position control frame 32 is rotatably mounted on the first fixed frame 312, and the second paper position control frame 33 is rotatably mounted on the second fixed frame 313. The first paper position control frame 32 and the second paper position control frame 33 are arranged opposite to each other in the paper tape conveying direction, and the paper feed guide roller 321 is respectively arranged at the top of the first paper position control frame 32 and the second paper position control frame 33, and the paper discharge guide roller 322 is respectively arranged at the bottom of the first paper position control frame 32 and the second paper position control frame 33. The height of the first paper position control frame 32 and the second paper position control frame 33 can be the same. Usually, the height of the second paper position control frame 33 at the paper discharge end is greater than the height of the first paper position control frame 32 at the paper feed end, so that the setting height of the paper feed guide roller 321 on the second paper position control frame 33 is higher than the setting height of the paper feed guide roller 321 on the first paper position control frame 32, and the setting height of the paper discharge guide roller 322 on the first paper position control frame 32 and the second paper position control frame 33 is the same.

[0061] Two light curtains 34 are provided, and the two light curtains 34 are respectively fixed at the lower part of the first fixed frame 312 and the second fixed frame 313, and are lower than the height at which the paper discharge guide rollers 322 on the first paper position control frame 32 and the second paper position control frame 33 are set, so that the narrow width paper tapes 61 guided by the paper discharge guide rollers 322 on the first paper position control frame 32 and the second paper position control frame 33 can pass through their respective corresponding light curtains 34 without interfering with each other.

[0062] In a further preferred embodiment of the corrugated board line splicing paper feeding device of the present application, a plurality of arc-shaped guide rails 314 are arranged on the first fixed frame 312 and the second fixed frame 313, and corresponding positions on the first paper position control frame 32 and the second paper position control frame 33 are respectively provided with guide rail matching structures 323, and the guide rail matching structures 323 can be a slider adapted to the arc-shaped guide rail 314, or can be a pressure wheel set arranged on both sides of the arc-shaped guide rail 314. The first paper position control frame 32 and the second paper position control frame 33 are respectively installed on the first fixed frame 312 and the second fixed frame 313 through the matching of their respective guide rail matching structures 323 with the arc-shaped guide rail 314, and can rotate on the first fixed frame 312 and the second fixed frame 313 along the arc-shaped guide rail 314.

[0063] The rotation driver 324 can be a hydraulic propulsion cylinder, a pneumatic propulsion cylinder or an electric push rod. The rotation driver 324 is arranged between the first paper position control frame 32 and the first fixed frame 312, and / or between the second paper position control frame 3 and the second fixed frame 313, and is used to push the first paper position control frame 32 to rotate on the first fixed frame 312, and the second paper position control frame 3 to rotate on the second fixed frame 313, so as to respectively control the positions of the two narrow width paper belts 61 on the paper supply roller group 4, ensuring that the two are seamlessly spliced ​​on the paper supply roller group 4 to form a wide width spliced ​​paper 62.

[0064] As a specific embodiment of the corrugated paperboard line splicing paper feeding device of the present application, the first paper position control frame 32, the first fixed frame 312, the second paper position control frame 33 and the second fixed frame 313 are arranged in sequence in the conveying direction of the narrow width paper tape 61. A linkage gear 315 is arranged on the first fixed frame 312, and the rotation axis of the linkage gear 315 is arranged on the first fixed frame 312 in parallel with the frame plane of the first fixed frame 312, and the gear teeth on both sides of the linkage gear 315 extend toward the first paper position control frame 32 and the second paper position control frame 33 respectively. Arc-shaped linkage racks 325 are fixedly arranged at relative positions on the first paper position control frame 32 and the second paper position control frame 33, and the two sides of the linkage gear 315 are respectively meshed with the linkage racks 325 on the first paper position control frame 32 and the second paper position control frame 33, so that the first paper position control frame 32 and the second paper position control frame 33 can respectively rotate synchronously in the opposite direction on the first fixed frame 312 and the second fixed frame 312, and at the same time, reversely adjust the positions of the two narrow width paper tapes 61 transmitted by the first paper position control frame 32 and the second paper position control frame 33 on the paper supply roller group 4, thereby improving the adjustment efficiency of the relative positions of the two narrow width paper tapes 61 on the paper supply roller group 4, and better ensuring the seamless splicing state of the two narrow width paper tapes 61 on the paper supply roller group 4.

[0065] Only one rotation driver 324 is provided, and one rotation driver 324 can be provided between the first paper position control frame 32 and the first fixed frame 312, or between the second paper position control frame 33 and the second fixed frame 313. Through the extension and retraction of one rotation driver 324, the first paper position control frame 32 can be driven to rotate on the first fixed frame 312, and the second paper position control frame 33 can be driven to rotate on the second fixed frame 312 at the same time, and the rotations of the two are synchronously reversed.

[0066] An embodiment of the corrugated cardboard line provided by the present application includes one or more paper supply devices for providing face paper, and one or more paper supply devices for providing corrugated paper. In the paper supply devices for providing face paper or corrugated paper, at least one corrugated cardboard line splicing paper supply device provided by any embodiment of the present application is used to provide wide width spliced ​​face paper or wide width spliced ​​corrugated paper formed by splicing two narrow width paper strips 61; at the same time, at least one existing paper supply device is used to provide wide width corrugated paper or wide width face paper whose width meets the width requirements of the corrugated cardboard. By using the corrugated cardboard line splicing paper supply device provided by the present application, the low-priced narrow width paper rolls stored in the paper mill can be seamlessly spliced ​​to produce corrugated cardboard, thereby realizing the effective use of the narrow width paper rolls stored in the paper mill, and reducing the production cost of the corrugated cardboard, thus forming greater social and economic benefits. The existing paper supply device can provide a full-width face paper or corrugated paper equivalent to the width of the corrugated cardboard, ensuring that the wide-width splicing paper 62 is stably bonded to the full-width paper, ensuring that the produced corrugated cardboard has a product quality equivalent to that of corrugated cardboard produced entirely from full-width paper, and meeting the quality requirements of the corrugated cardboard.

[0067] In the description of the present application, the description with reference to the terms "one embodiment", "specific embodiment", "preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0068] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A corrugated board line splicing and feeding device, characterized in that: The invention comprises a paper supply rack (1), a paper receiving guide roller group (2), a paper position control mechanism (3) and a paper supply roller group (4), wherein the paper supply rack (1) comprises a paper supply rack body (11), a bracket mounting shaft (12), a first side paper clamp (13), a middle paper clamp (14) and a second side paper clamp (15), wherein the bracket mounting shaft (12) is fixed to the paper supply rack body (11), the first side paper clamp (13), the middle paper clamp (14) and the second side paper clamp (15) are sequentially mounted on the bracket mounting shaft (12), the inner side of the first side paper clamp (13), the two sides of the middle paper clamp (14) and the inner side of the second side paper clamp (15) are rotatably connected to the first side paper clamp (131), the first middle paper clamp (141), the second middle paper clamp (142) and the second side paper clamp (151) at relative positions, and ... paper supply rack (11) comprises a paper supply rack body (11), a bracket mounting shaft (12), a first side paper clamp (131), a first middle paper clamp (141), a second middle paper clamp (142) and the second side paper clamp (151) at relative positions, and the paper supply rack (11) comprises a paper supply rack body (11), a bracket mounting shaft (12), a first side paper clamp (131), a middle paper clamp (141), a second middle paper clamp (142) and the second side paper clamp (151) are rotatably connected to the first side paper clamp (13), the first side paper clamp (131), the second side paper clamp (142) and the second A narrow width paper roll can be clamped between the first side paper clamp (131) and the first middle paper clamp (141) and between the second middle paper clamp (142) and the second side paper clamp (151). The first middle paper clamp (141) and the second middle paper clamp (142) can rotate independently relative to the middle clamping paper (14). The paper receiving guide roller group (2) is arranged between the paper supply rack (1) and the paper position control mechanism (3) so as to guide a narrow width paper to the paper position control mechanism (3) and transport the narrow width paper to the paper supply roller group (4) through the paper position control mechanism (3). The paper position control mechanism (3) can control the positions of two narrow width papers on the paper supply roller group (4) in real time so that the two narrow width papers are seamlessly spliced ​​on the paper supply roller group (4) to form wide width spliced ​​paper.

2. The corrugated board line splicing and feeding device according to claim 1, characterized in that: The intermediate paperboard (14) is provided with a paper clip mounting hole (143); a first bearing mounting portion (1411) is provided on the outer side surface of the end of the first intermediate paper clip (141); a first bearing (144) is installed between the first bearing mounting portion (1411) and the paper clip mounting hole (143); a bearing limiting pin hole (1412) is provided at the end of the first bearing mounting portion (1411) outside the first bearing (144); a bearing limiting pin (1412) is provided in the bearing limiting pin hole (1412). 1417); a bearing mounting hole (1413) is provided on the end surface of the first intermediate paper clamp (141), a connecting shaft (1421) is provided on the end surface of the opposite end of the second intermediate paper clamp (142), a second bearing (145) is provided between the connecting shaft (1421) and the bearing mounting hole (1413), a bearing limiting retaining spring groove (1422) is provided on the connecting shaft (1421) outside the second bearing (145), and a bearing limiting retaining spring is provided in the bearing limiting retaining spring groove (1422).

3. The corrugated board line splicing and feeding device according to claim 2, characterized in that: A connecting threaded hole (1414) is provided at the end of the bearing mounting hole (1413), and a connecting sleeve (1423), a thrust bearing (146) and a thrust bearing limiting sleeve (1415) are sequentially provided in the connecting threaded hole (1414). The thrust bearing limiting sleeve (1415) is screwed into the connecting threaded hole (1414) via threads on its outer peripheral surface, so as to limit the thrust bearing (146) and the connecting sleeve (1423) in the thrust bearing. A connecting thread is arranged on the inner side of the force bearing limit sleeve (1415), and the connecting shaft (1421) at the outer end of the bearing limit retaining ring groove (1422); the connecting shaft sleeve (1423) is connected to the end of the connecting shaft (1421) through an adapting thread; the connecting shaft sleeve (1423) is provided with a shaft sleeve limit hole (1424); and a shaft sleeve limit plug hole (1416) is provided at a corresponding position on the first intermediate paper clamp (141).

4. The corrugated board line splicing and feeding device according to claim 1, characterized in that: The middle paperboard (14) is installed in the middle part of the bracket mounting shaft (12), and axial slide bars (121) are arranged on both sides of the bracket mounting shaft (12). The first side paperboard (13) and the second side paperboard (15) are both provided with axial slide grooves (132), and are slidably installed on the bracket mounting shaft (12) through the cooperation of the axial slide grooves (132) and the axial slide bars (121), and sliding thrusters are arranged between the first side paperboard (13) and the second side paperboard (15) and the paper supply rack (11).

5. The corrugated board line splicing and feeding device according to claim 1, characterized in that: The first side clamping paperboard (13) and the second side clamping paperboard (15) are both provided with a paper roll buffer (133), and the paper roll buffer (133) is respectively connected to the first side paper clamping head (131) and the second side paper clamping head (151).

6. The corrugated board line splicing and feeding device according to claim 1, characterized in that: The paper position control mechanism (3) comprises a control mechanism mounting frame (31), a first paper position control frame (32) and a second paper position control frame (33); the first paper position control frame (32) and the second paper position control frame (33) are both rotatably mounted on the control mechanism mounting frame (31); a paper feed guide roller (321) is arranged on the upper part of the first paper position control frame (32) and the second paper position control frame (33); and a paper discharge guide roller (322) is arranged on the lower part; and a light curtain (34) is arranged on the control mechanism mounting frame (31) at a position opposite to the paper discharge guide roller (322).

7. The corrugated board line splicing and feeding device according to claim 6, characterized in that: The control mechanism mounting frame (31) comprises a fixed base frame (311), a first fixed frame (312) and a second fixed frame (313); the first fixed frame (312) and the second fixed frame (313) are relatively fixed on the fixed base frame (311); the first paper position control frame (32) is rotatably mounted on the first fixed frame (312); the second paper position control frame (33) is rotatably mounted on the second fixed frame (313); and the light curtain (34) is respectively arranged on the first fixed frame (312) and the second fixed frame (313).

8. The corrugated board line splicing and feeding device according to claim 7, characterized in that: The first fixed frame (312) and the second fixed frame (313) are both provided with an arc-shaped guide rail (314); corresponding positions of the first paper position control frame (32) and the second paper position control frame (33) are provided with a guide rail matching structure (323); the first paper position control frame (32) and the second paper position control frame (33) are respectively rotatably mounted on the first fixed frame (312) and the second fixed frame (313) through the matching of the guide rail matching structure (323) and the arc-shaped guide rail (314), and can be rotated under the drive of a rotation driver (324).

9. The corrugated board line splicing and feeding device according to claim 8, characterized in that: The first paper position control frame (32), the first fixed frame (312), the second paper position control frame (33) and the second fixed frame (313) are arranged in sequence; a linkage gear (315) is arranged on the first fixed frame (312); linkage racks (325) meshing with the linkage gear (315) are arranged at relative positions of the first paper position control frame (32) and the second paper position control frame (33); and the rotation driver (324) is arranged between the first paper position control frame (32) and the first fixed frame (312), or between the second paper position control frame (33) and the second fixed frame (313).

10. A corrugated board production line, comprising a plurality of paper feeding devices, characterized in that: The paper supply device comprises at least one corrugated board line splicing paper supply device according to any one of claims 1 to 9, and at least one existing paper supply device.

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